FiberMaxMI™ is a microfiber concrete solution designed to control early-age cracking in everyday flatwork without changing how crews place and finish concrete. Using ultra-thin synthetic fibers, FiberMaxMI™ helps protect residential and light commercial slabs from plastic shrinkage cracks while preserving a smooth, clean finish.
FiberMaxMI™ disperses millions of fine polypropylene fibers throughout the mix, creating a dense network that resists micro-cracks as bleed water evaporates. This three-dimensional fiber matrix supports the coarse aggregate, reduces segregation and surface defects, and significantly cuts plastic shrinkage cracking potential in slabs-on-grade.
Ultra-thin fibers help prevent micro-cracks from forming and growing during plastic shrinkage.
Fibers are almost invisible at the surface, delivering excellent finishing characteristics for driveways, patios, and basement slabs.
Added at the plant, FiberMaxMI™ fits into standard placement practices with no special tools or installation steps.
Project type, strength requirements, placement method, exposure conditions, and any specifications from engineers or owners are helpful so the team can recommend the right mix.
Yes. Admixtures can adjust set times or workability, and fibers can help control cracking and improve toughness, which can be important for slabs, industrial floors, and long-lasting pavements.
Flowable fill is useful for trench backfill, utility work, and hard to compact areas where easy placement, reduced labor, and consistent support are priorities.
Contact United Materials with project details, and the technical and sales teams can help identify the best standard or specialized concrete mixes for your needs.
It colors cast-in-place slabs, precast panels, pavers, walls, steps, sidewalks, and decorative features uniformly.
Yes, pigments are lightfast, UV-stable, alkali-resistant, and non-corrosive to rebar or fibers.
FiberMaxMI™ is excellent for residential slabs-on-grade such as driveways, sidewalks, garage floors, and interior slabs where plastic shrinkage control is critical.
No. FiberMaxMI™ is intended for plastic shrinkage crack control and does not replace structural steel reinforcement like rebar or welded wire fabric.
The polypropylene microfibers have a very small diameter and are designed to be nearly invisible, allowing standard finishing and appearance.
When properly dosed, FiberMaxMI™ maintains good workability and finishing characteristics similar to conventional concrete.
United Materials batches FiberMaxMI™ at the plant for consistent fiber dispersion and reliable performance in the field. Our dispatch team works with contractors to time deliveries so crews can place and finish without delay.
Every FiberMaxMI™ mix is produced under strict controls to verify fiber content, distribution, and concrete performance. United Materials’ quality program helps ensure predictable crack control and finish results on residential and light commercial projects.
Protect your next slab-on-grade from early-age cracking with FiberMaxMI™ micro fiber reinforcement. Contact United Materials to download the brochure, review recommended uses, or schedule a FiberMaxMI™ mix for your upcoming pour.
Concrete Division
Concrete Dispatch: (716) 213-5800
Toll Free # (888) 91UNITED (918-6483)
Dispatch Fax: (716) 473-5480
Concrete Sales: (716) 213-5832
Plant Locations: Sanborn, Lancaster, Orchard Park, Batavia
Batavia Ready Mix Plant
638 E Main St, Batavia, NY 14020
Phone (716) 213-5800
